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IT8900A/E Series High Power DC Electronic Load
Small size High power
Series High Power DC Electronic LoadAPPLICATIONS
IndustryMilitary & Aerospace
Server power supplyCar charger
Communication power supplyBattery pack
Energy storage systemCharging station
IT8900A/EIT8900A/E
YOUR POWER TESTING SOLUTION
01 IT8900A/E series high power DC electronic load
Series SeriesHigh Power DC Electronic Load
IT8900A/EIT8900A/EHigh Power DC Electronic Load
Features
IT8900A/E series high performance high power DC electronic load provides three voltage ranges 150V/600V/1200V, stand-alone power from 2kW to 54kW. IT8900A/E series, with ultra-wide voltage and current range, controlled by an independent master unit. The power expands to 384kW by master-slave paralleling. Ultra-high power density, 6kW is with only 4U height.IT8900A/E series has eight (A series) / four (E series) working modes, faster loop response and current rising and falling speed, as well as dynamic mode, OCP test, OPP test, automatic test and battery test functions. Built-in CAN, LAN, GPIB, USB, RS232 and analog interfaces, etc., IT8900A/E series has comprehensive protection function, which can be applied to power battery discharge, DC charging station, on-board charger (OBC), power electronics and other power electronics products.
Stand-alone input power: 2kW, 4kW, 6kW, 12kW, 18kW, 24kW, 30kW, 36kW, 42kW, 48kW, 54kWVoltage range: 150V, 600V, 1200VCurrent range: up to 600A for 4u modules (up to 2400A for 24u racks)Master/slave paralleling control, maximum power expands to 384kWMultiple operating modes: CC, CV, CR, CP, CC+CV, CV+CR, CR+CC, CP+CC*1Transient over-power loading capabilityAdjustable CV loop speed, match different power supplies30kHz high-speed dynamic mode, adjustable current rising and falling time*2500kHz high-speed voltage and current sampling rateTime measurement, battery discharge test functionShort circuit simulation, automatic test function
Soft start and soft stop prevent voltage fluctuations at on/offTiming control list programmingI-monitorBuilt-in LAN, USB, RS232, GPIB, CAN, external analog control interfaceOCP/OPP test functionHigh-precision voltage and current measurementProtection functions: OVP, OCP, OPP, OTP, current oscillation protection, limited current protection, limited power protection, reverse alarm protection etc.Up to 100 groups’ memories, with power off memory functionIndependent master unit control for easy mainte-nance installation
600V 1200V Height150V
2kW
Input parameter
4kW
6kW
12kW
18kW
24kW
30kW
36kW
42kW
48kW
54kW
IT8902A/E-600-140
IT8904A/E-600-280
IT8906A/E-600-420
IT8912A/E-600-840
IT8918A/E-600-1260
IT8924A/E-600-1680
IT8930A/E-600-2100
IT8936A/E-600-2400
IT8942A/E-600-2400
IT8948A/E-600-2400
IT8954A/E-600-2400
IT8902A/E-1200-80
IT8904A/E-1200-160
IT8906A/E-1200-240
IT8912A/E-1200-480
IT8918A/E-1200-720
IT8924A/E-1200-960
IT8930A/E-1200-1200
IT8936A/E-1200-1440
IT8942A/E-1200-1680
IT8948A/E-1200-1920
IT8954A/E-1200-2160
IT8902A/E-150-200
IT8904A/E-150-400
IT8906A/E-150-600
IT8912A/E-150-1200
IT8918A/E-150-1800
IT8924A/E-150-2400
IT8930A/E-150-2400
IT8936A/E-150-2400
IT8942A/E-150-2400
IT8948A/E-150-2400
IT8954A/E-150-2400
4u
4u
4u
8u
15u
24u
24u
24u
37u
37u
37u
*1 IT8900E only supports CC, CV, CR, CP operation mode *2 30kHz is only suitable for 150V model
Your Power Testing Solution
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IT8900A/E series high power DC electronic load
Application
High power density, small size
IT8900A/E series adopts high power density design, the size is half of the conventional electronic load, and the weight is 1/3 of the conventional electronic load.
Ultra-wide voltage and current input range
IT8900A/E series has ultra-wide voltage and current input range, covering a variety of existing models, meeting the requirements of high current, low voltage or high voltage, low current.
Industry (motors)
Server power supply
High voltage UPS Military industry & Aerospace Electronic component
Car charger Battery pack DC charging station
Energy storage system
Automotive electronics
DC charging station, car charger, power electronics and other testsFuse and relay aging testPower battery, lead battery, fuel cell discharge testIntelligent manufacturing, industrial motor safety testing (such as AGV, robots, etc.)
Virtual load testing of natural energy (solar battery array, wind power generation)Server power, high voltage UPS, communication power testA/D power supply and other power electronic components test
Conventional electronic loadITECHIT8900A/E 12kW 8u
Wide Range Input
480A
I
V
240A
600V0
IT8912-600-480
IT8912-1200-240
1200V
4u=6kWWin High Power, Small Size
03 IT8900A/E series high power DC electronic load
Your Power Testing SolutionIT8900A/E series high power DC electronic load
Eight working modes
Dynamic and List function
IT8900A/E series electronic load has battery discharge function, and can perform discharge test under CC, CR, or CP mode. IT8900A/E can set 3 battery stop conditions: voltage, capacity and time. Whenever met any condition, it will automatically stop test. During the test, users can observe battery’s voltage, time and already-discharged-ca-pacity.
V
FinalVoltage
DischargeTime
BatteryVoltage
Time
The dynamic mode and list mode of the IT8900A/E series can all be performed in the CC mode. By editing the step width and slope of each step, a variety of complex sequenc-es can be generated, allowing the user to complete various tests with loading waveforms. And under CC mode, IT8900A/E can set the rising and falling speed.
IT8900A/E series have master-slave paralleling and equalized current. IT8900A/E series support cabinet paralleling under different power and same voltage. After paralleling, all functions of the stand-alone can be realized, including working in CV mode, maximum parallel-ing up to 384kW. The stand-alone can also work independently and the power configuration is more flexible. The paralleling machine adopts analog and digital wiring separately, and the performance of the paralleling machine is more stable.
Master-slave paralleling, flexible power configuration
System Bus
System Bus
IT8900A series provides eight kinds of working modes such as CC, CV, CR, CP, CV+CC, CV+CR, CR+CC, CP+CC, which can adapt to the test requirements of various occasions. Among them, the CP mode is often used to UPS battery test, simulate the current change when the battery voltage is decaying. It can also be used to simulate the characteristics of the inputs of DC-DC converters and inverters. The CV+CC mode can be applied to the load simulation battery and test the charging station or the car charger. When the CV is working, the maximum loading current is limited. CR+CC mode is commonly used in the testing of voltage limiting, current limiting characteristics, constant voltage accuracy, and constant current accuracy of on-board chargers, which prevents over-current protection of on-board chargers.
Battery discharge function
I
VCV+CC mode
I
VLED(CV+CR) mode
V
I
CP mode
I
VCC mode
I
VCV mode
I
VCR mode
I
VCP+CC mode
I
VCR+CC mode
Electronic Load
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Your Power Testing SolutionIT8900A/E series high power DC electronic load
IT8900A/E series electronic load is built-in LAN, USB, RS232, CAN, GPIB, analog interface, supports SCPI protocol. It is suitable for power expansion, computer or PLC remote control, system building and so on.
Built-in communication interface
IT8900A/E series provides the measurement of rising and falling time of voltage and current. The measure-ment accuracy is up to 10μs, which is comparable to the high precision oscilloscope. IT8900A/E series can be applied to measure the start-up and shutdown of power modules, holding time, and fuse blowing time. Measurement time is measured by the PC software.
Measure function
IT8900A series electronic load (150V model) has dynamic mode* with up to 30kHz, the upgrade of the integrated internal structure has greatly improved the loop response and stability. IT8900A can be applied to the transient response test of switching power supplies and can also test transient high current tolerance of DC-DC converters and batteries.
Dynamic mode up to 30kHz
Remarks: from above graph, A and B are arbitrary points of the rising stage, C is one point on the green stage, D and E are arbitrary points of the falling stage.
A
B
C
D
EF
1 2 3 4 5 6 7 8
1、 CAN 2、 RS232 3、 USB
4、 LAN 5、 GPIB 6、 i-monitor
7、 Analog interface 8、 SENSE
* IT8900E dynamic response is 10 kHz
OCP and OPP are mainly applied in over-current and over-power point tests of the lithium-battery protection board and power modules. For power supplies, OCP and OPP are designed to guarantee the user’s safety and to reduce damage rate. IT8900A/E series can automatically judge the test result according to the set specifications, so the users can save much time in verification of design and production system.
OCP, OPP Tests
IT8906A-1200-2405 kHz dynamic loading 0A-50A
OPP Protection Test
CW/V
TriggerOPP
Time
Loading Power
15V
OPP Point
05 IT8900A/E series high power DC electronic load
Your Power Testing SolutionIT8900A/E series high power DC electronic load
IT8900A/E series electronic load has analog control interface, which can be used for industrial control or expanding load power by parallel-ing.When IT8900A/E is used for industrial control, using PLC output 0~10V to control the 0~100% full scale change of CC/CV of the load. Compared with the real-time control from PC, the response time is faster and up to 10μs, step time is <10ms, accuracy can reach 1%. At the same time, IT8900A/E also has the advantage that the number of steps is not limited. The right picture shows the 0-4.2V sine wave input analog interface, which controls the dynamic loading of the IT8900A 0-100A. The waveform amplitude and phase reduction below 10 kHz are higher. It can be applied to battery tests of all kinds of complicated waveforms, and can also be used for impedance analysis test of fuel cells.When used to paralleling load power expansion, the analog interface can be used for parallel differential analog control interface, which is more stable and reliable than the traditional independent LAN interface parallel communication.
External analog control function
To avoid instrument damages by incorrect operations or abnormal ambient surroundings, IT8900A/E provides soft start, soft stop, current oscillation protection, OVP, OCP, OPP, OTP, current limit protection, power limit protection, and etc. When any abnormal situation, IT8900A/E will immediately stop working to ensure the DUT and personnel safety.
Full protectionOVP ovp
1 2 3 4
Anti-reverseprotection
5
Anti-reverseprotection
Anti-reverseprotectionAnti-reverseprotection
6 7
IT8900A/E has 2x transient over power capability, which makes load to take over power loading capability in short time. Users can select models as per rated working power of power supply or battery products, instead of maximum power value, and it can extremely save cost. IT8900A/E can simulate motor start-up features, test power supply’s transient over load features, and also test the transient high power discharge characteristics of the power battery, ignition battery, etc.
Transient over power loading capability
IT8900A is with soft start and soft stop function, which can prevent the load from loading too fast, transiently pull down the power supply voltage, or transiently turning off the load to cause power supply voltage surge, that is, the settable on slope, openable off slope function.
Soft start, soft stop functionIT8906A-1200-240 rated power 6kW transiently
withstand 8kW loading
1 kHz sine wave
10 kHz sine wave
OCP OPP OTP
Current limitprotection
Power limitprotection
No soft stop function, voltage overshoot With soft stop function, voltage without overshoot
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Your Power Testing SolutionIT8900A/E series high power DC electronic load
VoltageCurrentPower*5
RangeResolutionAccuracy
RangeResolutionAccuracy
RangeResolutionAccuracy
RangeResolutionAccuracy
Accuracy
T1&T2
Range
Range
ResolutionAccuracy
AccuracyResolution
Range
Accuracy
Current(CC)Voltage(CV)Resistance(CR)
VoltageFrequency
Power
Resolution
Rated(0~40℃)
CV mode
CC mode
CR mode*1
CP mode*3
Dynamic mode*4
CC mode
Readback Power*2
Short circuit
AC input
Readback Voltage
Readback Current
OPPOCPOVPOTP
Input terminal impedance
HeightWeight
Model IT8902A-1200-80 IT8904A-1200-160 IT8906A-1200-240
0~1200V
0~8A 0~80A
2kW
1.2V/8A 12V/80A
0.1~120V 0.1~1200V
10mV 100mV
±(0.05%+0.05%FS) ±(0.05%+0.05%FS)
0~8A 0~80A
0.1mA 1mA
±(0.05%+0.1%FS) ±(0.05%+0.1%FS)
0.2Ω~10Ω 10Ω~7.5KΩ
16bit
0.01%+0.08S *2 0.01%+0.0008S
2kW
0.1W
0.2%+0.2%FS
20uS~3600S /Res:1 us/10ms/100ms
5uS±100ppm
0.0001~0.1A/μS 0.001~1 A/μS
≒30μS ≒30μS
0~120V
10mV
±(0.025%+0.025%FS)
0~8A
0.1mA
±(0.05%+0.1%FS)
0~1200V
100mV
±(0.025%+0.025%FS)
0~80A
1mA
±(0.05%+0.1%FS)
2kW
0.1W
±(0.2%+0.2%FS)
≒2.02KW
≒8.8A ≒88A
≒1250V
≒85℃
≒8.8A ≒88A
≒1.8MΩ
4U
28.8Kg
100~240Vac
50/60Hz
150VA max
*1 Voltage/Current is not less than 10%FS (FS is full range)
*2 Readback resistance range: (1/(1/R+(1/R)*0.01%+0.08),1/(1/R-(1/R)*0.01%-0.08) )
*3 Voltage/Current is not less than 10%FS
*4 Loading current value is not less than 4%FS_CCH
*5 The curve between rated input power and input voltage of 1200V model is shown in
the right figure
0~1200V
0~16A 0~160A
4kW
1.2V/16A 12V/160A
0.1~120V 0.1~1200V
10mV 100mV
±(0.05%+0.05%FS) ±(0.05%+0.05%FS)
0~16A 0~160A
1mA 10mA
±(0.05%+0.1%FS) ±(0.05%+0.1%FS)
0.1Ω~10Ω 10Ω~7.5KΩ
16bit
0.01%+0.08S *2 0.01%+0.0008S
4kW
0.1W
0.2%+0.2%FS
20uS~3600S /Res:1 us/10ms/100ms
5uS±100ppm
0.001~0.2A/μS
≒30μS
0.01~2 A/μS
≒30μS
0~120V
10mV
±(0.025%+0.025%FS)
0~16A
1mA
±(0.05%+0.1%FS)
0~1200V
100mV
±(0.025%+0.025%FS)
0~160A
10mA
±(0.05%+0.1%FS)
4kW
0.1W
±(0.2%+0.2%FS)
≒4.04kW
≒17.6A ≒176A
≒1250V
≒85℃
≒17.6A ≒176A
0V
≒75mΩ
≒1.8MΩ
4U
34.7Kg
100~240Vac
50/60Hz
200VA max
≒1.6MΩ
4U
40 Kg
100~240Vac
50/60Hz
250VA max
0V
≒150mΩ
0~1200V
0~24A 0~240A
6kW
1.2V/24A
0.1~120V
10mV
±(0.05%+0.05%FS)
0~24A
1mA
±(0.05%+0.1%FS)
0.1Ω~10Ω
12V/240A
0.1~1200V
100mV
±(0.05%+0.05%FS)
0~240A
10mA
±(0.05%+0.1%FS)
10Ω~7.5KΩ
16bit
6kW
0.1W
0.2%+0.2%FS
0.01%+0.08S *2 0.01%+0.0008S
20uS~3600S /Res:1 us/10ms/100ms
5uS±100ppm
0.001~0.3A/μS
≒30μS
0.01~3 A/μS
≒30μS
0~120V
10mV
±(0.025%+0.025%FS)
0~24A
1mA
±(0.05%+0.1%FS)
0~1200V
100mV
±(0.025%+0.025%FS)
0~240A
10mA
±(0.05%+0.1%FS)
6kW
0.1W
±(0.2%+0.2%FS)
≒6.05KW
≒25.2A ≒252A
≒1250V
≒85℃
≒25.2A
0V
≒50mΩ
≒252A
0V
≒50mΩ
100%
50%
1000 1200 Voltage
Rated power
Rising/falling slopeMinimum rising time
Minimum operating voltage
YOUR POWERTESTING SOLUTION
TEL: 02-2228-9799FAX: 02-2222-9727E-mail: [email protected]
TaiwanTEL: +86-25-52415098FAX: +86-25-52415268E-mail: [email protected]
China
This information is subject to
change without notice.
For more information, please
contact ITECH.